ESL senior scientist presents at national aquatic applicator workshop

Earth Science Labs senior scientist highlights two products in a recent presentation at an aquatic applicators workshop in Indianapolis. 

INDIANAPOLIS, IN – Senior Scientist Dr. David Hammond of Earth Science Laboratories, Inc., presented Jan 19, 2024, on the control of algae, cyanobacteria, and invasive species with specialty copper solutions at the 2024 Aquatic Control Applicator Workshop in Indianapolis, IN.  

Dr. Hammond spoke on the advantages of switching from conventional copper to liquid ionized copper as a tool for the management and suppression of nuisance algae and invasive mussels. Data from real-world studies show that applicators switching from conventional copper to liquid ionized copper products can achieve similar or better results by applying 50%-80% less copper. 

Quantitative measures have shown that EarthTec ionic copper remains in the water column longer and have a higher diffusion rate than conventional copper sulfate or copper chelate formulations, saving time for applicators and increasing efficacy. Using EarthTec in raw drinking water can also reduce taste and odor compounds, especially geosmin.  

Dr. Hammond also presented case studies documenting control of invasive zebra and quagga mussels without harm to non-target organisms and the freshwater ecosystem. . While it is widely believed that once invasive mussels are introduced to a water body there is nothing that can be done to remove them, EarthTec QZ has been used to successfully and cost-effectively eradicate invasive mussels from entire lakes.  

Earth Science Laboratories Inc. develops and manufactures sustainable chemical water treatment products for use in municipal, agricultural, and recreational waters. EarthTec is NSF Certified to ANSI Standard 60 for use in drinking water. It is EPA registered and approved for use in open waters and pipelines. More information is available at 

EarthTec QZ is an EPA-registered molluscicide used to control zebra and quagga mussels in pipelines and open waters. It is NSF certified to Standard 60 as an additive to drinking water. More information is available at